Vikas Kumar

10 Questions 26 Answers 0 Followers

Questions related from Vikas Kumar

How to perform synergistic antioxidant activity of extract?

Can anybody know about synergistic antioxidant activity of extract.pls let me know.. Regards Vikas

24 January 2022 9,085 2 View

Collaboration for research?

Dear all, I am looking for a collaborator for performing in vivo antioxidant activity of my extracts. Please anyone national or international researcher can msg me. Thanks and regards Vikas Kumar

14 October 2021 1,607 6 View

How to calculate experimental retention indices and literature retention indices in GCMS data of oil?

Can anyone help in the calculation of relative retention indices (RRI), kovat's indices in GCMS data?

03 May 2021 9,391 2 View

How to prepare nano particle and with which metal?I am looking for antimicrobial and antioxidant activity?

I want to prepare nano particle rich in poly phenols. How to prepare nano particle and with which metal?I am looking for antimicrobial and antioxidant activity. I want to prepare nano particle...

26 February 2016 5,206 7 View

Can anybody tell regarding the phenolic and flavonoid contents in fractionation process?

I have defatted my extract and then prepare ethanolic extract....after that I dissolved my extract in water and then fractionate firstly with chloroform, ethyl acetate and then with n-butanol...

27 January 2016 4,951 11 View

I want to evaluate the antimicrobial activity of my plant extract?

I want to evaluate the antimicrobial activity of my plant extract. What will be the ratio of extract and solvent for disc diffusion method? Is it according to the standard disc? Does anyone have...

23 December 2015 9,941 4 View

How can I fractionate ethanolic extract which is defatted with petroleum ether?

I want to get a fraction rich in phenolics, flavonoids or terpenoids, and then use further column chromatography to identify that compound.

23 December 2015 1,994 7 View

How do I calculate the IC 50 value of an extract and standard using a DPPH assay?

01 December 2015 7,975 8 View

How to calculate total phenolic contents of juice and wine?

I have calculated phenolic content in case of extracts, but I have doubts in the formula - C=cxv/m. c is concentration as calculated from calibration curve What does m refer to in the case of...

07 October 2015 8,346 17 View

Can anybody help in analysis of matric data of RAPD of plants?

I have analysed 30 samples with 30 different decamer primers and I have also prepared matrix data of all primers. I am unable to use software to analyse, please guide me how to use the software as?

01 January 1970 5,572 6 View